Quinn ewers is the first high schooler to get a million dollar NIL deal a year or two ago. He has 21 pictures on Instagram over the past 3 years. He was one of the best QBs in his state, which is why companies wanted to work with him.
Again, you seem to be conflating NIL with social media influencers by saying how much time they'll spend online.
NIL allows an athlete to make profits, and makes it so a school or a company can't use their image to make profits. It all came about from Ed O'BANNON being mad that EA sports could sell video games depicting he and his teammates and make millions, and the kids got nothing.